LIFT-MASTER 8155W - Garage door

8155W - Garage door LIFT-MASTER - Free user manual and instructions

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Product Type Residential belt drive garage door opener
Brand LiftMaster
Model 8155W
Power Supply 120 V, 60 Hz
Motor Power 1/2 HP (estimated)
Drive Type Belt
Rail Length 2.1 m (7 ft) / 2.4 m (8 ft) / 3.0 m (10 ft) depending on door
Weight (opener only) Approximately 14 kg (31 lb)
Connectivity Wi-Fi 2.4 GHz, myQ® compatible
Backup Battery 12 V, rechargeable (optional, model 485LM)
Lighting A19 incandescent or LED bulb (max 100 W)
Safety Protector System® (infrared sensors), automatic reversal
Smart Features Control via myQ® app, Alert2Close, Timer to Close (TTC), lock
Memory Capacity Up to 12 remote controls, 2 smart control panels or 4 standard controls
Warranty parts/motor/belt 1 year parts, 4 years motor, 10 years belt
Monthly Maintenance Test safety reverse system and door balance
Annual Maintenance Lubricate door rollers, bearings and hinges; test backup battery
Cleaning Clean sensor lens with soft, solvent-free cloth
Spare Parts Available Yes, belt, rail, carriage, sensors, remote controls, etc. (see manual)
Repairability Estimated repairability score: 8/10 (standard parts, online support)

Frequently Asked Questions - 8155W LIFT-MASTER

What to do if the opener does not close the door?
Check that the safety reversing sensors (Protector System®) are aligned and unobstructed. The sensor LEDs should be lit continuously (orange and green). If an LED flashes, realign the sensors.
How to program the remote control for the 8155W?
Press and release the LEARN button on the opener, then press the remote button. The lights flash or you hear two clicks. Repeat for other remotes.
Does the opener work during a power outage?
Yes, if a backup battery (model 485LM) is installed. The 12 V battery provides approximately 24 hours of normal operation. The battery LED flashes green during charging.
How to manually open the door in case of power failure?
Pull the emergency release handle (red cord) to disengage the carriage. The door can then be lifted manually. Use this handle only when the door is closed if possible.
What does a flashing of the UP and DOWN arrows on the opener mean?
This is a diagnostic code. For example, 1 flash of the UP arrow and 1 flash of the DOWN arrow indicates a safety sensor problem. Refer to the diagnostic chart in the manual for solutions.
How to connect the opener to the myQ® app?
Download the myQ® app, create an account, then follow the instructions to connect the opener to your Wi-Fi network (2.4 GHz). The myQ serial number is on the opener.
How often should the safety reverse system be tested?
Every month. Place a block of wood (2x4 laid flat) under the door and close it. The door should reverse upon contact. If not, reprogram the travel limits.
Can I use LED bulbs in the opener?
Yes, but only use LED bulbs recommended by Chamberlain to avoid radio interference with the remote. Standard A19 bulbs are also compatible.
My neighbor's remote opens my door, what to do?
Erase all codes by holding the LEARN button for 6 seconds until the LED turns off. Then reprogram your remotes. This ensures only your equipment works.
The carriage does not re-engage after manual release?
Pull the release handle downward and backward (toward the opener) to unlock the carriage lock mechanism. Then operate the opener so the carriage reconnects automatically.

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Download the instructions for your Garage door in PDF format for free! Find your manual 8155W - LIFT-MASTER and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. 8155W by LIFT-MASTER.

USER MANUAL 8155W LIFT-MASTER

  • Please read this manual and the safety materials caref
  • The door WILL NOT CLOSE unless the Proteefier Syst connected and properly aligned.
  • Periodic checks of the garage door opener are required to ensure safe operation.
  • This garage door opener is ONLY compatible with myC Security+ 20accessories.
  • DO NOT install on a one-piece door if using devices features providing unattended close. Unattended devices features are to be used ONLY with sectional doors.
  • Attach warning labels to the location indicated on label

Download the myQ App

LIFT-MASTER 8155W - 1

LIFT-MASTER 8155W - 2

Greenbund on the App Store

Available on most iOS and Android Devices

LiftMaster

300Windsor Drive

Oak Brook, IL 60523

LiftMaster®

Table of Contents

Preparation 3
CartonInventory: Models 8160W, 8160WB, 8164W, 8165W, and 8365W-267. 6
CartonInventory: Model 8155W 7
Assembly 8
Models8160W, 8160WB, 8164W*, 8165W, and 8365W-267. 8
Model8155W 9
Installation 10
Install the Door Control 19
Install the Protector System 22
Power 26
Adjustments 29
Battery Backup 32
Operation 34
Maintenance 42
Troubleshooting
Accessories
Warranty
Automatic Garage Door Opener Safety & Maintenance Guide
Repair Parts
Models8160W, 8160WB, 8164W, 8165W, and 8365W-267. 49
Models8160W and 8160WB
Models8164W and 8165W
Model8365W-267
Model8155W

47

Preparation

myQ® Serial Number

Write down the following information for future reference:

myQ* Serial Number:

Product Serial Number:

Date of Purchase:

LIFT-MASTER 8155W - myQ® Serial Number - 1

myQ Serial Number

LIFT-MASTER 8155W - myQ® Serial Number - 2

Safety Symbol and Signal Word Review

This garage door opener has been designed and tested to offer safe service provided operated, maintained and tested in strict accordance with the instructions and warnings this manual.

When you see these Safety Symbols and Signal Words on the following pages, they the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read carefully.

LIFT-MASTER 8155W - myQ® Serial Number - 3

WARNING

Mechanical

LIFT-MASTER 8155W - WARNING - 1

WARNING

Electrical

When you see this Signal Word on the following pages, it will alert you to the pc to your garage door and/or the garage door opener if you do not comply with the statements that accompany it. Read them carefully.

LIFT-MASTER 8155W - WARNING - 1

CAUTION

LIFT-MASTER 8155W - CAUTION - 1

WARNING: This product can expose you to chemicals including lead, which are the State of California to cause cancer or birth defects or other reproductive more information go to www.P65Warnings.ca.gov

Unattended Operation

The Timer-to-Close (TTC) feature, the myQ® App, and myQ® Garage Door and Gate examples of unattended close and are to be used ONLY with sectional doors. Any device that allows the door to close without being in the line of sight of the door is closed. The Timer-to-Close (TTC) feature, the myQ® App, and any other myQ® devices ONLY with sectional doors.

Preparation

Before You Connect with Your Smartphone

Monitor and control your garage door from anywhere using the myQ® App. You will need:

Wi-Fi® enabled smartphone, tablet or laptop
- Broadband Internet Connection
Wi-Fi® signal in the garage (2.4 GHz, 802.11b/g/n required)

TEST THE WI-FI® SIGNAL STRENGTH

Make sure your mobile device is connected to your Wi-Fi® network. Hold your place where your garage door opener will be installed and check the Wi-Fi® si

LIFT-MASTER 8155W - TEST THE WI-FI® SIGNAL STRENGTH - 1

LIFT-MASTER 8155W - TEST THE WI-FI® SIGNAL STRENGTH - 2
Check Signal Strength. If you see:

LIFT-MASTER 8155W - TEST THE WI-FI® SIGNAL STRENGTH - 3

Wi-Fi signal is strong.

The garage door opener will

connect to your Wi-Fi network.

LIFT-MASTER 8155W - TEST THE WI-FI® SIGNAL STRENGTH - 4

WI-Fi signal is weak.

The garage door opener may connect to your

Wi-Fi network. If not, try one of the

below to improve the Wi-Fi signal:

LIFT-MASTER 8155W - TEST THE WI-FI® SIGNAL STRENGTH - 5

No Wi-Fi signal.

The garage door opener will not be able to

connect to your Wi-Fi network. Try one of

options below to Improve the Wi-Fi signal

  • Move your router closer to the garage door opener to minimize

interference from walls and other objects

Buy a Wi-Fi range extender

Visit support.chamberlaingroup.com for more details.

For compatible router specifications and help, visit WiFiHelp.LiftMaster.com.

See page 36 to connect the garage door opener to a mobile device.

Check the Door

WARNING

To prevent possible SERIOUS INJURY or DEATH:

  • ALWAYS call a trained door systems technician if garage door binds, balance. An unbalanced garage door may NOT reverse when required.
  • NEVER try to loosen, move or adjust garage door, door springs, cables, pulley or their hardware, ALL of which are under EXTREME tension.

mobile double fall locks and remove ALL ropes connected to garage door BEFORE installfinal strengthoperating garage door opener to avoid entanglement .

  • DO NOT install on a one-piece door if using devices or features providing unclose. Unattended devices and features are to be used ONLY with sectional door

CAUTION

To prevent damage to garage door and opener:

  • ALWAYS disable locks BEFORE installing and operating the opener.
  • ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and da
    and da

Before you begin:

  1. Disable locks and remove any ropes connected to the garage door.
  2. Lift the door halfway up. Release the door. If balanced, it should stay in
    place, supported entirely by its springs
  3. Raise and lower the door to check for binding or sticking on Eysenlon door
    binds, sticks, or is out of balance, call a trained door systems engineer.
  4. Check the seal on the bottom of the door. Any gap between the floor and the bottom of the door must not exceed 1/4 (6 mm). Otherwise, the
    safety reversal system may not work properly.
  5. The opener should be installed above the center of the door. If there is a torsion spring or center bearing plate in the way of the header bracket, it may be installed within 4 feet (1.2 m) to the left or right of the door center. See page 11.

Preparation

Tools Needed

LIFT-MASTER 8155W - Preparation - 1

LIFT-MASTER 8155W - Preparation - 2

LIFT-MASTER 8155W - Preparation - 3

LIFT-MASTER 8155W - Preparation - 4

LIFT-MASTER 8155W - Preparation - 5

LIFT-MASTER 8155W - Preparation - 6

LIFT-MASTER 8155W - Preparation - 7

LIFT-MASTER 8155W - Preparation - 8

LIFT-MASTER 8155W - Preparation - 9

LIFT-MASTER 8155W - Preparation - 10

LIFT-MASTER 8155W - Preparation - 11

Preparation

Carton Inventory: Models 8160W, 8160WB, 8164W, 8165WARD

8365W-267

Accessories will vary depending on the garage door opener model purchased. Depingbol 54618 x 7/8" (4) Screw 6AB x 1" (2) specific model, other accessories may be included with your garage door opener. Large Construction-9 x 1-5/8" (2) Screw 6-32 x 1" (2) for these accessories will be attached to the accessory and are not included in this manual. The Clevis Pin 5/16' x 2-3/4' (1) Drywall anchors (2) Images throughout this manual are for reference and your product may look different. Pin 5/16' x 1-1/4' (1)

For Square Rail see instructions included with the rail kit model LMSSRKIT.

A. Header bracket

B. Pulley and bracket

C. Door bracket

D.Curved door arm

G. Emergency release rope and handle

H.Rail

M. White and red/white wire

N. The Protector System

Safety reversing sensors with white and white/black wire attached: Sending Receiving Sensor (1) and Safety Sensor Brackets (2)

O. Safety labels and literature

P.Rail grease

Q. Battery Backup (Model 8160WB only)

SECURITY+ 2. ACCESSORIES

882LMW

Multi-Function Door Control

Models: 8160W, 8160WB, 8165W, 8365W-267

883LMW

Push Button Door Control

Models: 8164W

893LM

Remote Control

Models: 8160W, 8160WB, 8165W, 8365W-267

891LM

Remote Control

Model: 8164W

LIFT-MASTER 8155W - SECURITY+ 2. ACCESSORIES - 1

LIFT-MASTER 8155W - SECURITY+ 2. ACCESSORIES - 2

LIFT-MASTER 8155W - SECURITY+ 2. ACCESSORIES - 3

LIFT-MASTER 8155W - SECURITY+ 2. ACCESSORIES - 4

Clevis Pin 5/16" x 1" (1)

Nut 5/16'-18 (4)

Lock washer 5/16' (4)

Self-threading screw 1/4'-14 x 5/8" (2)

Ring fastener (3)

Carriage bolt 1/4'-20 x 1/2' (2)

Wing nut 1/4'-20 (2)

LIFT-MASTER 8155W - SECURITY+ 2. ACCESSORIES - 5

Preparation

Carton Inventory: Model 8155W

Accessories will vary depending on the garage door opener model purchased. De specific model, other accessories may be included with your garage door opener for these accessories will be attached to the accessory and are not included in this manual. The

images throughout this manual are for reference and your product may look

A. Header bracket

B. Pulley and bracket

C. Door bracket

D.Curved door arm

G. Emergency release rope and handle

H.Rail

J. Sprocket cover with hex screws

K. Belt

L. Door control

M. White and red/white wire

N. The Protector System

Safety reversing sensors with white and white/black wire attached: Sending

Receiving Sensor (1) and Safety Sensor Brackets (2)

O. Safety labels and literature

P. Rail grease

SECURITY+ 2. ACCESSORIES

882LMW

Multi-Function Door Control

LIFT-MASTER 8155W - 882LMW - 1

LIFT-MASTER 8155W - 882LMW - 2

INSTALLATION HARDWARE

1000000000000000000000000000000000000000000000000000000000000000000000

Lag. screw 546-9 x 1-5/8" (2) Self-threading screw 1/4"-14 x 5/8" (2)

Clevis Pin 5/16 x 2-3/4" (1) Ring fastener (3)

Devis Pin 5/16' x 1-1/4" (1) Carriage bolt 1/4'-20 x 1/2" (2)

Clevis Pin 5/16' x 1' (1) Wing nut 1/4'-20 (2)

Nut 5/16-18 (4)

DOOR CONTROL HARDWARE

Screw 6AB x 1' (2)

Screw 6-32 x 1" (2)

Drywall anchors (2)

LIFT-MASTER 8155W - DOOR CONTROL HARDWARE - 1

Assembly

1 Attach the Rail to the Garage Door Opener

MODELS 8160W, 8160WB, 8164W*, 8165W, AND 8365W-267

  • Can be installed with a T-Rail or a Square Rail. For Square Rail assembly provided with the rail kit model LMSSRKIT. Once completed, return to this man instructions.

WARNING

To avoid possible SERIOUS INJURY to finger from moving garage door opener. ALWAYS keep hand clear of sprocket while operating opener.

  • Securely attach sprocket cover BEFORE operating.

CAUTION

To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.

NOTE: ONLY use the bolts removed from the garage door opener. Place the garage door opener on the packing material to prevent scratching.

  1. Remove the two bolts from the top of the garage door opener.
  2. Align the rail and the styrofoam over the sprocket. Cut the tape from the rail, chain, and styrofoam.
  3. Fasten the rail with the previously removed bolts.
  4. Position the chain around the garage door opener sprocket.
  5. Models 8160WMX and 8160WBMX: Attach the sprocket cover over the garage door opener sprocket and attach with hex screws.

Models 8164WMX and 8165WMX: Install the sprocket cover by squeezing the sides and inserting the tabs into the slots on the garage door opener.

LIFT-MASTER 8155W - CAUTION - 1

2 Tighten the Chain

  1. Loosen the inner nut and lock washer on the trolley threaded shaft.
  2. Tighten the strutry nut until the chain is a 1/2" above the base of the rail.
  3. Use the nail installation.

Slack in the chain is normal when the door is closed. No readjustment is necessary. Sprocket noise can result if the chain is too loose. During future maintenance, ALWAYS emergency release handle to disconnect the trolley before adjusting the chain.

LIFT-MASTER 8155W - Tighten the Chain - 1

Assembly

1 Attach the Rail to the Garage Door Opener MODEL 8155W

WARNING
To avoid possible SERIOUS INJURY to finger from moving garage door opener. • ALWAYS keep hand clear of sprocket while operating opener. • Securely attach sprocket cover BEFORE operating.
CAUTION
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/faste the top of the opener.

NOTE: ONLY use the bolts removed from the garage door opener. Place the packing material to prevent scratching.

  1. Remove the two bolts from the top of the garage door opener.
  2. Align the rail and the styrofoam over the sprocket. Cut the tape from styrofoam.
  3. Fasten the rail with the previously removed bolts.
  4. Position the belt around the garage door opener sprocket.
  5. Attach the sprocket cover over the garage door opener sprocket and attach with hex

LIFT-MASTER 8155W - Assembly - 1

2 Tighten the Belt

  1. By hand, thread the spring trolley nut on the threaded shaft until it is finger trolley. Do not use any tools.
  2. Insert a flathead screwdriver tip into one of the nut ring slots and brace it trolley.
  3. Tighten the spring trolley nut with an adjustable wrench or a 7/16^ open end quarter turn until the spring releases and snaps the nut ring against the trolley spring to optimum belt tension.

1

LIFT-MASTER 8155W - Tighten the Belt - 1

To reduce the risk of

  1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
  2. Install garage door opener ONLY on properly balanced and lubricated garage door. An
    improperly balanced door may NOT reverse when required and could result in SEVERE INJURY or DEATH.
  3. ALL repairs to cables, spring assemblies and other hardware MUST be made by a door systems technician BEFORE installing opener. 10.
  4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to avoid entanglement. 11.
  5. Where possible, install the door opener 7 feet (2.13 m) or more above the floor.
  6. Mount the emergency release within reach, but at least 6 feet (1.83 m) above
    and avoiding contact with vehicles to avoid accidental release.
  7. NEVER connect garage door opener to power source until instructed to do so.
  8. NEVER wear watches, rings or loose clothing while installing or servicing opener. They could be caught in garage door or opener mechanisms.

  9. Install wall-mounted garage door control:

An within sight of the garage door.

ERE - out of reach of small children at a minimum height of 5 feet (1 above floors, landings, steps or any other adjacent walking surface.

a trained away from ALL moving parts of the door.

10 . Place entrapment warning label on wall next to garage door control infalling prominent location

1.1.2.1

  1. Place emergency release/safety reverse test label in plain view on inside

r. garage door

12 fulcon completion of installation, test safety reversal system. Door MUST

reverse on contact with a 1 - 1 / 2^n (3.8 cm) high object (or a 2x4 laid fla

They to avoid SERIOUS PERSONAL INJURY or DEATH from electrocution.

connect ALL electric power BEFORE performing ANY service or

mainte

  1. DO NOT install on a one-piece door if using devices or features provided

  2. unattended close. Unattended devices and features are to be used

sectional doors.

  1. SAVE THESE INSTRUCTIONS.

Installation

1 Determine the Header Bracket Location

WARNING

To prevent possible SERIOUS INJURY or DEATH:

  • Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise garage door might NOT reverse when required. DO NOT install header bracket over drywall.
    Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
    NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are under EXTREME tension.
  • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out balance. An unbalanced garage door might NOT reverse when required.
  • DO NOT enable the Timer-to-Close functionality if operating either one-piece or swinging garage doors. To be enabled ONLY when operating a sectional door.

Close the door and mark the inside vertical centerline of the garage door.

Extend the line onto the header wall above the door. You can fasten the header bracket within 4 feet (1.22 m) of the left or right of the door center only if a torsion spring or center bearing plate is in the way; or you can attach it to the ceiling when clearance is minimal. (It may be mounted on the wall upside down if necessary, to gain approximately 1/2 (1 cm). If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural supports.

Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the header wall 2^ (5 cm) above the high point. This height will provide travel clearance for the top edge of the door.

NOTE: If the total number of inches exceeds the height available in your garage, use the maximum height possible, or refer to page 11 for ceiling installation.

LIFT-MASTER 8155W - WARNING - 1

LIFT-MASTER 8155W - WARNING - 2
Sectional door with curved track

Installation

2 Install the Header Bracket

You can attach the header bracket either to the wall above the garage door, the instructions which will work best for your particular requirements. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not pr

LIFT-MASTER 8155W - Install the Header Bracket - 1

OPTION A - WALL INSTALLATION

  1. Center the bracket on the vertical centerline with the bottom edge of the bracket on the horizontal line as shown (with the arrow pointing toward the ceiling).
  2. Mark the vertical set of bracket holes (do not use the holes designated for cellar Drill 3/16' pilot holes and fasten the bracket securely to a structural support with

LIFT-MASTER 8155W - OPTION A - WALL INSTALLATION - 1
FOR SQUARE RAIL

LIFT-MASTER 8155W - OPTION A - WALL INSTALLATION - 2

OPTION B CEILING INSTALLATION

or 1. Extend the vertical centerline onto the ceiling as shown.
2. Center the bracket on the vertical mark, no more than 6^ (15 cm) from the arrow is pointing toward the wall. The bracket can be mounted flush again when clearance is minimal.
3. Mark the side holes. Drill 3/16" pilot holes and fasten bracket securely to a with the hardware provided.

LIFT-MASTER 8155W - OPTION B CEILING INSTALLATION - 1
FOR T-RAIL

LIFT-MASTER 8155W - OPTION B CEILING INSTALLATION - 2
FOR SQUARE RAIL

Installation

3 Attach the Rail to the Header Bracket

  1. Align the rail with the header bracket. Insert the clevis pin through the h bracket and rail. Secure with the ring fastener.

NOTE: Use the packing material as a protective base for the garage door opener.

FOR T-RAIL

LIFT-MASTER 8155W - Attach the Rail to the Header Bracket - 1
Clevis Pin 5/16" x 2-3/4" Ring Fastener

LIFT-MASTER 8155W - Attach the Rail to the Header Bracket - 2

FOR SQUARE RAIL

holes in the header HARDWARE

LIFT-MASTER 8155W - Attach the Rail to the Header Bracket - 3

Installation

4 Position the Garage Door Opener

LIFT-MASTER 8155W - Position the Garage Door Opener - 1

  1. Remove the packing material and lift the garage door opener onto a ladder. 2. Fully open the door and place a 2 × 4 (laid flat) under the rail. A 2 × 4 is ideal for setting the distance between the rail and the door. If the lid you will need help at this point, if the door hits the trolley when it is raised, arm down to disconnect the inner and outer trolley. Slide the outer trolley toward opener. The trolley can remain disconnected until instructed.

FOR T-RAIL

LIFT-MASTER 8155W - FOR T-RAIL - 1

FOR SQUARE RAIL

LIFT-MASTER 8155W - FOR SQUARE RAIL - 1

Installation

5 Hang the Garage Door Opener

WARNING

To avoid possible SERIOUS INJURY from a falling garage door opener, fasten structural supports of the garage. Concrete anchors MUST be used if installing masonry.

Hanging your garage door opener will vary depending on your garage. Two representative installations are shown. Yours may be different. Hanging brackets should be angled (Figure 1) to provide rigid support. On finished ceilings (Figure 2), attach a sturdy metal bracket to structural supports before installing the opener. This bracket and fastening hardware are not provided.

  1. Measure the distance from each side of the motor unit to the structural support.
  2. Cut both pieces of the hanging bracket to required lengths.
  3. Drill 3/16" pilot holes in the structural supports.
  4. Attach one end of each bracket to a support with 5 / 16^ - 18× 1 - 7 / 8^ lag screws (not
    provided)
  5. Fasten the opener to the hanging brackets with 5/16'-18 x 7/8' hex bolts, lock washers and
    nuts.
  6. Check to make sure the rail is centered over the door (or in line with the header bracket if the
    bracket is not centered above the door).
  7. Remove the 2x4. Operate the door manually. If the door hits the rail, raise the header

NOTE: DO NOT connect power to opener at this time.

LIFT-MASTER 8155W - WARNING - 1
IT ANY SECRETLY TO

HARDWARE

LIFT-MASTER 8155W - HARDWARE - 1

LIFT-MASTER 8155W - HARDWARE - 2
Hex Boit 5/16' - 18x7/8' Nut 5/16' - 18 Lock Washer 5/16'

LIFT-MASTER 8155W - HARDWARE - 3

LIFT-MASTER 8155W - HARDWARE - 4
FIGURE 3 (Not Provided) Lag Screws 5/16-18x1-7/8
Hex Bolt 5/16-18x7/8, Lock Washer 5/16, Nut 5/16-18

Installation

6 Install the Light Bulbs

CAUTION

To prevent possible OVERHEATING of the end panel or light socket:

Use ONLY A19 light bulbs.
DO NOT use incandescent bulbs larger than 100W.
DO NOT use compact fluorescent light bulbs larger than 26W (100W) DO NOT use halogen bulbs.
DO NOT use short neck or specialty light bulbs.

LED bulbs may cause remote control radio interference. Use ONLY LED bulbs here: chamberlain.com/bulb.

1.Pull light lens down.
2. Insert light bulb.
3. Close light lens.

MODELS 8160W AND 8160WB

LIFT-MASTER 8155W - MODELS 8160W AND 8160WB - 1

MODELS 8155W, 8164W, and 8165W MODEL 8365W-267

LIFT-MASTER 8155W - MODELS 8155W, 8164W, and 8165W MODEL 8365W-267 - 1

LIFT-MASTER 8155W - MODELS 8155W, 8164W, and 8165W MODEL 8365W-267 - 2

7 Attach the Emergency Release Rope and Handle

WARNING

To prevent possible SERIOUS INJURY or DEATH from a falling garage door:

  • If possible, use emergency release handle to disengage trolley ONLY when garages are closed. Weak or broken springs or unbalanced door could result in an injury. falling rapidly and/or unexpectedly.
    NEVER use emergency release handle unless garage doorway is clear of persons obstructions.

rccnneeruse handle to pull door open or closed. If rope knot becomes tall.

  1. Insert one end of the emergency release rope through the handle. Make sure it is right side up. Secure with an overhand knot at least 1^ (2.5 cm) from to prevent slipping.
  2. Insert the other end of the emergency release rope through the hole in the arm. Mount the emergency release within reach, but at least 6 feet (1.83 m) a avoiding contact with vehicles to prevent accidental release and secure with an knot.

NOTE: If it is necessary to cut the emergency release rope, seal the cut end with a match or lighter to prevent unraveling. Ensure the emergency release rope and handle are above the top to avoid entanglement.

LIFT-MASTER 8155W - WARNING - 1
FOR T-RAIL

Installation

Install the Door Bracket

CAUTION

Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement installation of door bracket. Contact the garage door manufacturer or installing reinforcement instructions or reinforcement kit. Failure to reinforce the top section according to the door manufacturer may void the door warranty.

A horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum, steel) doors with glass panel, etc.) (not provided). A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the panel. Contact the garage door manufacturer or installing dealer for opener reinforcement instructions or reinforcement kit.

LIFT-MASTER 8155W - CAUTION - 1

NOTE: Many door reinforcement kits provide for direct attachment of the clevis pin and door arm. In this case you will not need the door bracket; proceed to the next step.

SECTIONAL DOORS

  1. Center the door bracket on the previously marked vertical centerline used for the bracket installation. Note correct UP placement, as stamped inside the bracket.
  2. Position the top edge of the bracket 2^ - 4^ (5-10 cm) below the top edge of directly below any structural support across the top of the door.
  3. Mark, drill holes and install as follows, depending on your door's construction:

Metal or light weight doors using a vertical angle iron brace between the support and the door bracket:

Drill 3/16* fastening holes. Secure the door bracket using the two self threading (Figure 1)
- Alternately, use two 5 / 16^ - 18 × 2^ bolts, lock washers and nuts (not provided). (Fig

Metal, insulated or light weight factory reinforced doors:

  • Drill 3/16" fastening holes. Secure the door bracket using the self-threading screw (Figure 3)

Wood Doors:

t BBOBt top and bottom or side to side door bracket holes. Drill 5/16" holes thre eraler foandopeearebracket with 5 / 16^ - 18× 2^ carriage bolts, lock washers and nuts ( as refiguraee 4)

NOTE: The 1/4^ - 14 × 5/8 self-threading screws are not intended for use on wood doors.

LIFT-MASTER 8155W - SECTIONAL DOORS - 1
HARDWARE

Self-Threading Scrow 1/4 - 14 × 5 / 8

LIFT-MASTER 8155W - SECTIONAL DOORS - 2

LIFT-MASTER 8155W - SECTIONAL DOORS - 3

LIFT-MASTER 8155W - SECTIONAL DOORS - 4

LIFT-MASTER 8155W - SECTIONAL DOORS - 5

Installation

9 Connect the Door Arm to the Trolley

IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm.

  1. T-Rail: Close the door. Disconnect the trolley by pulling the emergency release handle. Slide the outer trolley back (away from the door) about 2^ (5 cm).
    Square Rail: Close the door. Disconnect the trolley by pulling the emergency release handle.
  2. Attach the straight door arm to the outer trolley using the clevis pin. Attach with the ring fastener.
  3. Attach the curved door arm to the door bracket using the clevis pin. Attach with the ring fastener.
  4. Align the straight door arm with the curved door arm. Select two aligned holes (as far as possible) and attach using the bolts, nuts and lock washers.
    NOTE: If the holes do not line up, reverse the straight door arm. Select two aligned holes far apart as possible) and attach using the bolts, nuts and lock washers.
  5. Pull the emergency release handle toward the garage door opener until the trolley release arm is horizontal. The trolley will re-engage automatically when the garage door opener is activated.

LIFT-MASTER 8155W - Connect the Door Arm to the Trolley - 1

LIFT-MASTER 8155W - Connect the Door Arm to the Trolley - 2

LIFT-MASTER 8155W - Connect the Door Arm to the Trolley - 3

LIFT-MASTER 8155W - Connect the Door Arm to the Trolley - 4
FOR SQUARE RAIL

LIFT-MASTER 8155W - Connect the Door Arm to the Trolley - 5

Install the Door Control

1 Install the Door Control - 882LMW

WARNING

To prevent possible SERIOUS INJURY or DEATH from electrocution:

Connect door control ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door,
- Install door control within sight of garage door, out of reach of small minimum height of 5 feet (1.5 m) above floors, landings, steps or any walking surface, and away from ALL moving parts of door.
- NEVER permit children to operate or play with door control push butte control transmitters.
Activate door ONLY when it can be seen clearly, is properly adjusted, obstructions to door travel.
ALWAYS keep garage door in sight until completely closed. NEVER permit cross path of closing garage door.

INTRODUCTION

Compatible with and Security+ 2.0 accessories, see page 45. Your garage door open compatible with up to 2 Smart Control Panels or 4 of any other Security+ 2.0 door NOTE: Older LiftMaster door controls and third party products are not compatible. Install door control within sight of garage door, out of reach of small children at a 5 feet (1.5 m) above floors, landings, steps or any other adjacent walking surface, and ALL moving parts of door. For gang box installations it is not necessary to drill hole drywall anchors. Use the existing holes in the gang box.

NOTE: Your product may look different than the illustrations.

LIFT-MASTER 8155W - INTRODUCTION - 1

  1. Strip 7/16' (11 mm) of insulation from one end of the wire and separate th 2. Connect one wire to each of the two screws on the back of the door cont be connected to either screw.
    PRE-WIRED INSTALLATIONS: Choose any two wires to connect, note which wires a so the correct wires are connected at the garage door opener in a later step 3. Mark the location of the bottom mounting hole and drill a 5 / 32^ hole.
  2. Install the bottom screw, allowing 1/8" (3 mm) to protrude from the wall.
  3. Position the bottom hole of the door control over the screw and slide down
  4. Lift the push bar up and mark the top hole.

children Remove the door control from the wall and drill a 5/32" hole for the top s her aposition the bottom hole of the door control over the screw and slide down Attach the top screw.

LIFT-MASTER 8155W - INTRODUCTION - 2

LIFT-MASTER 8155W - INTRODUCTION - 3

Install the Door Control

1 Install the Door Control - 883LMW

WARNING

To prevent possible SERIOUS INJURY or DEATH from electrocution:

  • Be sure power is NOT connected BEFORE installing door control.
  • Connect door control ONLY to 12 VOLT low voltage wires

To prevent possible SERIOUS INJURY or DEATH from a closing garage door,

  • Install door control within sight of garage door, out of reach of small children at
    minimum height of 5 feet (1.5 m) above floors, landings, steps or any other adjacent walking surface, and away from ALL moving parts of door.
    NEVER permit children to operate or play with door control push buttons or remote
    control transmitters
    Activate door ONLY when it can be seen clearly, is properly adjusted, and there are no obstructions to door travel.
  • ALWAYS keep garage door in sight until completely closed. NEVER permit anyone to cross path of closing garage door.

INTRODUCTION

Compatible with My and Security+ 2.0 accessories, see page 45. Your garage door opener is compatible with up to 2 Smart Control Panels or 4 of any other Security+ 2.0 door controls. NOTE: Older LiftMaster door controls and third party products are not compatible. Install door control within sight of garage door, out of reach of small children at a minimum height of 5 feet (1.5 m) above floors, landings, steps or any other adjacent walking surface, and away from ALL moving parts of door. For gang box installations it is not necessary to drill holes or install the drywall anchors. Use the existing holes in the gang box. NOTE: Your product may look different than the illustrations.

LIFT-MASTER 8155W - INTRODUCTION - 1
HARDWARE

  1. Strip 1/4" (6 mm) of insulation from one end of the wire and separate the
  2. Connect one wire to each of the two screws on the back of the door cont
    be connected to either screw.
  3. Mount the door control with the hardware provided.

LIFT-MASTER 8155W - INTRODUCTION - 2

Install the Door Control

2 Wire the Door Control to the Garage Door Opener 3 Attach the Warning Labels

PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener1. Attach the entrapment warning label on the wall near the door control with ta you use the same wires that are connected to the door control. 2. Attach the manual release/safety reverse test label in a visible location on the

  1. Run the white and red/white wire from the door control to the garage door of the attached the wire to the wall and ceiling with staples (not applicable for gang box or pre-wired installations). Do not pierce the wire with the staple as this may cause a short or an open

circuit. Strip 7/16" (11 mm) of insulation from the end of the wire near the garage door opener. Connect the wire to the red and white terminals on the garage door opener. To insert or release wires from the terminal, push in the tab with screwdriver tip.

LIFT-MASTER 8155W - Wire the Door Control to the Garage Door Opener 3 Attach the Warning Labels - 1

LIFT-MASTER 8155W - Wire the Door Control to the Garage Door Opener 3 Attach the Warning Labels - 2

Install the Protector System

Introduction

WARNING

Be sure power is NOT connected to the garage door opener BEFORE installing reversing sensor.

To prevent SERIOUS INJURY or DEATH from closing garage door:

  • Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be disabled.
    Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) ab

the safety
cm) above
tly before


team to prevent the
o the recciying
the light beam
sition.
Safety Reversing Sensor
6^ (15cm) max. above floor

light beam is

LIFT-MASTER 8155W - WARNING - 1

Invisibl Light Beam 6' (15 cm) max. above floor

Protection Area

Install the Protector System

1 Install the Safety Reversing Sensors

LIFT-MASTER 8155W - Install the Safety Reversing Sensors - 1

The safety reversing sensors are designed to clip onto the door track with the brackets. If the door track will not support the sensor bracket a wall installation The sensor beam should be NO HIGHER than 6' (15 cm) above the floor.

DOOR TRACK INSTALLATION

  1. Slide the curved arms of the sensor bracket around the edge of the place so that the sensor bracket is flush against the track.
  2. Slide the hex screw through the sensor.
  3. Attach the sensor to the bracket with the wing nut. Make sure the lens the bracket.

Repeat the steps with the other sensor on the opposite door track. Both lenses

LIFT-MASTER 8155W - DOOR TRACK INSTALLATION - 1

WALL INSTALLATION

Make sure the brackets on each side are clear of the door track and have the sai clearance so the sensors will align correctly. If additional clearance is needed, use ext 041A5281-1 (not provided) or wood blocks.

provid the sensor bracket against the wall with two lag screws (not provided). n is2. 3. Attach the sensor to the bracket with the wing nut. Make sure the lens is the bracket.

Repeat the steps with the other sensor on the opposite side of the garage door. Bring

LIFT-MASTER 8155W - WALL INSTALLATION - 1

LIFT-MASTER 8155W - WALL INSTALLATION - 2

Install the Protector System

FLOOR INSTALLATION

  1. Measure the position of both sensor brackets so they will be the same and unobstructed.
  2. Attach the bracket to the floor with concrete anchors (not provided).
  3. Slide the hex screw through the sensor.
  4. Attach the sensor to the bracket with the wing nut. Make sure the leg the bracket.

Repeat the steps with the other sensor on the opposite side of the garage face each other.

LIFT-MASTER 8155W - FLOOR INSTALLATION - 1

2 Wire the Safety Reversing Sensors

PREWED from INSTALLED: If your garage already has wires installed for the safety sensors, see page 25.

OPTION A - INSTALLATION WITHOUT PRE-WIRING

is 1. nroobthe wire by from both sensors to the garage door opener. Attach with stap puncture the wire.

tor. botiene the sensor wires and strip insulation from each end. Twist the two together. Then twist the two white/black wires together.

  1. Using a screwdriver, push in the terminal tabs, and insert the white wires into terminal. Insert the white/black wires into the grey terminal.

LIFT-MASTER 8155W - OPTION A - INSTALLATION WITHOUT PRE-WIRING - 1

Install the Protector System

OPTION B - PRE-WIRED INSTALLATION

  1. Cut the sensor wires, making sure there is enough wire to reach the wall.
  2. Separate the sensor wires and strip insulation from each end. Choose two installed wires and strip insulation from each end. Choose the same color for each sensor.
  3. Connect the pre-installed wires to the sensor wires with wire nuts making sure correspond for each sensor.
  4. At the garage door opener, strip the end of the wires previously connected to the sensors. Twist the like-colored wires together.
  5. Using a screwdriver, push in the terminal tabs and insert the wire color connected sensor's white wire into the white terminal. Insert the other wire color connected to sensor's white/black wire into the grey terminal.

LIFT-MASTER 8155W - OPTION B - PRE-WIRED INSTALLATION - 1

LIFT-MASTER 8155W - OPTION B - PRE-WIRED INSTALLATION - 2

LIFT-MASTER 8155W - OPTION B - PRE-WIRED INSTALLATION - 3

LIFT-MASTER 8155W - OPTION B - PRE-WIRED INSTALLATION - 4

LIFT-MASTER 8155W - OPTION B - PRE-WIRED INSTALLATION - 5
To insert or remove the wires from the terminal, push in the tab with a screwdriver tip.

Power

1 Connect Power

WARNING

To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:
- Be sure power is NOT connected to the opener, and disconnect power removing cover to establish permanent wiring connection.
- Garage door installation and wiring MUST be in compliance with ALL building codes.
- NEVER use an extension cord, 2-wire adapter, or change plug in ANY outlet. Be sure the opener is grounded.

To avoid installation difficulties, do not activate the garage door opener at th To reduce the risk of electric shock, your garage door opener has a grounding grounding pin. This plug will only fit into a grounding type outlet. If the plug outlet, contact a qualified electrician to install the proper outlet.

LIFT-MASTER 8155W - WARNING - 1

THERE ARE TWO OPTIONS FOR CONNECTING POWER:

OPTION A - TYPICAL WIRING

  1. Plug in the garage door opener into a grounded outlet.

  2. DO NOT run garage door opener at this time.

LIFT-MASTER 8155W - OPTION A - TYPICAL WIRING - 1

to circuit BEFORE

cal electrical and

way to make it fit

OPTION B - PERMANENT WIRING

If permanent wiring is required by your local code, refer to the following procedure. Is permanent connection through the 7/8" hole in the top of the motor unit (accord

esn't it into your 1. Remove the motor unit cover screws and set the cover aside.

  1. Remove the attached 3-prong cord.

  2. Connect the black (line) wire to the screw on the brass terminal; the white

the screw on the silver terminal; and the ground wire to the green ground s

opener must be grounded.

  1. Reinstall the cover.

LIFT-MASTER 8155W - OPTION B - PERMANENT WIRING - 1
PERMANENT WIRING

Power

2 Align the Safety Reversing Sensors

IMPORTANT: The safety reversing sensors MUST be connected and aligned garage door opener will move in the down direction. When the garage door opener has power check the safety reversing sensor

When the garage door opener has power, check the safety reversing sensors. aligned and wired correctly, both LEDs will glow steadily.

LIFT-MASTER 8155W - Align the Safety Reversing Sensors - 1

To align the safety reversing sensors:

  1. Loosen the wing nuts.
  2. Adjust the sensors up or down until both LEDs glow steady indicating
  3. Tighten the wing nut to secure the sensor.

LIFT-MASTER 8155W - Align the Safety Reversing Sensors - 2

SAFETY SENSOR TROUBLESHOOTING

If either of the sensor LEDs are off, there is no power to the sensor. 1. Check that you have power to the garage door opener. 2. Check the警示 wire is not attached or broken.

LIFT-MASTER 8155W - SAFETY SENSOR TROUBLESHOOTING - 1

LIFT-MASTER 8155W - SAFETY SENSOR TROUBLESHOOTING - 2

LIFT-MASTER 8155W - SAFETY SENSOR TROUBLESHOOTING - 3

If the green receiving sensor LED is blinking, the sensors are obstructed or misaligned. Check for obstructions in the sensor light beam.

  1. Align the sensors.
  2. If the receiving sensor (green LED) faces direct sunlight, switch the receiving s the sending sensor and repeat 1 Install the Safety Reversing Sensors page 23 proper operation.

Power

3 Ensure the Door Control is Wired Correctly

Models: 8155W, 8160W, 8160WB, 8165W, 8365W-267

If the door control has been installed and wired correctly, the command LED behind the push bar will blink.

LIFT-MASTER 8155W - Ensure the Door Control is Wired Correctly - 1

Models: 8164W

If the door control has been installed and wired correctly, the LED behind the push button will blink (883LMW).

LIFT-MASTER 8155W - Models: 8164W - 1

Adjustments

Introduction

WARNING

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.
- After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1 - 1 / 2^* (3.8 cm) high object (or 2x4 laid flat) on floor.

CAUTION

To prevent damage to vehicles, be sure fully open door provides adequate clearance.

Your garage door opener is designed with electronic controls to make setup and adjustments easy. While programming the travel, the UP and DOWN buttons can be used to move the door as needed. During the Automatic Force Setup, the door will automatically open and close.

LIFT-MASTER 8155W - CAUTION - 1

PROGRAMMING BUTTONS The programming buttons are located on the left or back side panel of the garage door opener and are used to program the travel. While programming, the UP and DOWN buttons can be used to move the door as needed.

LIFT-MASTER 8155W - CAUTION - 2

Adjustments

1 - Program the Travel

WARNING

Without a properly installed safety reversal system, persons (particularly small) SERIOUSLY INJURED or KILLED by a closing garage door.

Incorrect adjustment of garage door travel limits will interfere with proper safety reversal system.
- After ANY adjustments are made, the safety reversal system MUST be to: 1. MUST reverse on contact with 1 - 1 / 2^* (3.8 cm) high object (or 2x4 lid)

Note: While programming the travel, the UP and DOWN buttons can be used needed. During the Automatic Force Setup, the door will automatically open and

1 Press and hold the 2 Press and Adjustment Button until hold the UP the UP Button begins to flash and/or a beep is the door is in heard. The Safety Reversing Sensors will UP position be disconnected during the Program the Travel process.

3 Once the door is in the desired UP position press and release the Adjustment Button. The garage door opener lights will flash twice and the DOWN button will begin to flash. 4 Press and hold the DOWN button until the door is in the desired DOWN position.

5 Once the door is in the desired DOWN position press and release the Adjustment Button. The garage door opener lights will flash twice. Program the Travel is now complete. If the garage door opener lights flash 5 times, then programming has timed out and the Travel Limits have not been set. Please restart the Program the Travel process.

2 Automatic Force Set Up

Once both the up and down positions have been manually set, the Safety Reversing reconnect and become operational. Then, the opener will enter a force-sensing operation automatically moving the door open and close. The garage door opener will sound an automatic before automatically opening and closing the door. The garage door opener three times, confirming that the Automatic Force Setup completed successfully. Adjustmen

esed. Doo oonone long beep ater the door attems to move, then the Automatic Fo

LIFT-MASTER 8155W - Automatic Force Set Up - 1

LIFT-MASTER 8155W - Automatic Force Set Up - 2

Adjustments

3 - Test the Safety Reversal System

WARNING

Without a properly installed safety reversal system, persons (particularly sma) be SERIOUSLY INJURED or KILLED by a closing garage door.

  • Safety reversal system MUST be tested every month.
  • After ANY adjustments are made, the safety reversal system MUST be MUST reverse on contact with 1 - 1 / 2^+ (3.8 cm) high object (or 2x4 floor.

1 With the door fully open, place a 1-1/2 inch (3.8 cm) board (or a 2x4 centered under the garage door.

LIFT-MASTER 8155W - WARNING - 1

2 Press the remote control push button to close the door. The door MUST contact with the board.

LIFT-MASTER 8155W - WARNING - 2

If the door stops but does not reverse:

  1. Repeat Program the Travel (see Adjustment Step 1):
  2. Repeat the Safety Reversal test.

If the test continues to fail, call a trained door systems technician.

4 - Test the Protector System

WARNING

Without a properly installed safety reversing sensor, persons (particularly sm) could be SERIOUSLY INJURED or KILLED by a closing garage door.

1 Open the door. Place an obstruction in the path of the door.

LIFT-MASTER 8155W - WARNING - 1

2 Press the remote control push button to close the door. The door will not move inch (2.5 cm).
tested. Door
id flat) on the

LIFT-MASTER 8155W - WARNING - 2

The garage door opener will not close from a remote control if the LED in either sensor is off (alerting you to the fact that the sensor is misaligned or obstructed). If the garage door opener closes the door when the safety reversing sensor is obst sensors are go more than 6 inches [15 cm] above the floor), call for a trained d technician. when it makes

children)

Battery Backup

1 Install the Battery*

LIFT-MASTER 8155W - Install the Battery* - 1

WARNING

To reduce the risk of FIRE or INJURY to persons:

  • Disconnect ALL electric and battery power BEFORE performing ANY service maintenance.
  • Use ONLY LiftMaster part # 485LM for replacement battery.
  • DO NOT dispose of battery in fire. Battery may explode. Check with disposal instructions.

LIFT-MASTER 8155W - WARNING - 1

CAUTION

ALWAYS wear protective gloves and eye protection when changing the battery the battery compartment.

2 Test the Battery

  1. Unplug the garage door opener. The battery status LED will either glow solid indicating opener is operating on battery power or will flash indicating low batt NOTE:Make sure the garage door opener is unplugged.
  2. Open and close the door using the remote control or door control. NOTE: The garage door opener may run slower if the battery is not fully charged. The battery will ta fully charge.

3 Plug in the garage door opener. Verify the battery status LED is flashing green. Battery is charging.

LIFT-MASTER 8155W - Test the Battery - 1

LIFT-MASTER 8155W - Test the Battery - 2

LIFT-MASTER 8155W - Test the Battery - 3

LIFT-MASTER 8155W - Test the Battery - 4

LIFT-MASTER 8155W - Test the Battery - 5

LIFT-MASTER 8155W - Test the Battery - 6

  1. Unplug the garage door opener.
  2. Open the light lens of the garage door opener. Use a Phillips head screwdriver to remove the battery cover on the garage door opener.
  3. Partially insert the battery into the battery compartment with the terminals facing out.
  4. Connect red (+) and black (-) wires from the garage door opener to the corresponding terminals on the battery.
  5. Replace the battery cover
  6. Plug in the garage door opener.
  7. Wait for the green Battery Status LED to start flashing before proceeding to test the battery.

LIFT-MASTER 8155W - Test the Battery - 7

If applicable.

Battery Backup

3 Charge the Battery

The battery charges when the garage door opener is plugged into a 120Vac elecGreen oLED that has power and requires 24 hours to fully charge. A fully charged battery supplies 1Aldcsysteme the araragarnal. door opener for up to 24 hours of normal operation during an electrical power outage. Ashed green LED light indicates the battery is fully charged. electrical power has been restored, the battery will recharge within 24 hours. The battery flashing green LED indicates the battery is being charged approximately 1 to 2 years with normal usage. To obtain maximum battery life ORANGE Evded: damage, disconnect the battery when the garage door opener is unplugged for an extended period of time, opener has lost power and is in battery backup n such as a summer or winter home.

4 Battery Status LED

GREEN oLEBt that has

Aydcsytemthe angaragmal.

outageA Aodid green LED light indicates the battery is fully charged.
be battery flashingsat green LED indicates the battery is being charged.

ORANGEvendEd: damage.

Thepege geof dme,opener has lost power and is in battery backup mode.

A solid orange LED with beep, sounding approximately every 2 seconds, indicate

garagedooropenerisoperatingonbatterypower.

  • A flashing orange LED with beep, sounding every 30 seconds, indicates the bat

RED LED:

The battery needs to be replaced.

  • A solid red LED with beep, sounding every 30 seconds, indicates the battery hold a charge. Go to LiftMaster.com to purchase a replacement battery to allow to operate during a power outage.

NOTE: The Battery Status LED is most visible with the garage door opener light off. Battery does not have to be fully charged to operate the garage door opener.

LIFT-MASTER 8155W - Battery Status LED - 1

Operation

IMPORTANT SAFETY INSTRUCTIONS

WARNING

To reduce the risk of SEVERE INJURY or DEATH:

  1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.
  2. ALWAYS keep remote controls out of reach of children. NEVER permit or play with garage door control push buttons or remote controls.
  3. ONLY activate garage door when it can be seen clearly, it is proper are no obstructions to door travel.
  4. ALWAYS keep garage door in sight and away from people and objects closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
  5. NO ONE SHOULD GO UNDER A STOPPED. PARTIALLY OPENED DOOR.
  6. If possible, use emergency release handle to disengage trolley ONLY when CLOSED. Use caution when using this release with the door open. Weak springs or unbalanced door could result in an open door falling rapidly unexpectedly and increasing the risk of SEVERE INJURY or DEATH.
    7 . NEVER use emergency release handle unless garage doorway is clear of
    obstructions.
  7. NEVER use handle to pull garage door open or closed. If rope knot could fall.
  8. After ANY adjustments are made, the safety reversal system MUST be

  9. Safety reversal system MUST be tested every month. Garage door MUST reverse children camadepath 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on the floor. Failur the garage door opener properly increases the risk of SEVERE INJURY or DEAT adjusted ALWAYS tHEEP GARAGE DOOR PROPERLY BALANCED (see page 4). An improper balanced door may NOT reverse when required and could result in SEVERE INJ until cHETTELY

  10. ALL repairs to cables, spring assemblies and other hardware, ALL of which are EXTREME tension, MUST be made by a trained door systems technician.
    en garageto avoid interference with the proper operation of the garage door opener when or borer in the garage, unplug garage door opener before operating welded. and/or To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution, disconnect A electric and battery power BEFORE performing ANY service or maintenance.
    personstand operator system is equipped with an unattended operation feature. The door move unexpectedly. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR becomes DontedT youstall on a one-piece door if using devices or features providing unclose. Unattended devices and features are to be used ONLY with sectional doo

Operation

Features

Your garage door opener is equipped with features to provide you with greater garage door operation.

ALERT2CLOSE

The Alert2Close feature provides a visual and an audible alert that an unattende TIMER-TO-CLOSE (TTC)

The TTC feature automatically closes the door after a specified time period that a TTC enabled door control (Models 881LMW or 880LMW). Prior to and during garage door opener lights will flash and the garage door opener will beep.

MYQ

myQ technology uses a 900MHz signal to provide two-way communication between door opener and reagented accessories. Your garage door opener is compatible with myQ accessories.

SECURITY+ 2.0 REMOTE CONTROLS AND DOOR CONTROLS

Your garage door opener has already been programmed at the factory to oper control, which changes with each use, randomly accessing over 100 billion new with my and Security+ 2.0 accessories, see page 45

NOTE: Older LiftMaster remote controls, door controls, and third party products are not compatible.

Security+ 2.0 AccessoriesMEMORY CAPACITY
Remote Controls Up to 12
Door Controls Up to 2 Smart Control Panels or 4 of any other Security+ 2.0 controls
Keyless Entries Up to 1

THE PROTECTOR SYSTEM SAFETY REVERSING SENSORS)

When properly connected and aligned, the safety reversing sensors will detect an obstruction in the path of the infrared beam. If an obstruction breaks the infrared beam while the door is closing, the door will stop and reverse to full open position. If the door is fully open, and the safety reversing sensors are not installed, or are misaligned, the door will not close from a remote control. However, you can close the door if you hold the button on the door control or keyless entry until the door is fully closed. The safety reversing sensors do not effect the opening cycle.

LIGHTS

The garage door opener light bulbs will turn on when the opener is initially plugged restored after interruption, or when the garage door opener is activated. The lights wi automatically after 4-1/2 minutes. Use an incandescent A19 light bulb (100 watt max

USING YOUR GARAGE DOOR OPENER

The doorbar is closed. An opener can be activated through a wall-mounted door control, remote wireless keyless entry or myQ® App.

When the door is closed and the garage door opener is activated the door will open.
mades to contact with this obstruction while opening, the door will stop, opener beeps an
times. When the door is in any position other than closed and the garage door op
the door will close. If the garage door makes contact with an obstruction while close
reverse, opener beeps and lights flash 5 times. However, you can close the door if

the door control or keyless entry until the door is fully closed. The safety 16 reversing sensors do not affect the opening cycle. The safety reversing ser connected and aligned correctly before the garage door opener will move in the down

BATTERY BACKUP

The battery bar code system allows access in and out of your garage, even when the door opener is operating on battery power, the garage door opener the light will not function, the Battery Status LED will glow solid orange, and a bee approximately every 2 seconds.

door

Operation

Connect With Your Smartphone

The Wi-Fi Garage Door Opener is compatible with enabled accessories. Up to 10 devices can be paired to the Wi-Fi garage door opener's internal gateway. These controlled with the _网 . These devices include any combination of gangem or openers, Wi-Fi garage door openerslightlyControls, mGate operators or mMyQ commercial door operators. A LiftMaster Internet Gateway (828LM) can be added control more than 10 devices using Athe btyQ to 6 devices can be paired to ga opener itself (controlled by garage door opener through 900MHz). These devices i combination of mght controls or a garage door and gate monitor.

YOU WILL NEED:

Wi-Fi enabled smartphone, tablet or laptop
- Broadband Internet Connection
Wi-Fi signal in the garage (2.4 GHz, 802.11b/g/n required), see page 4
- Password for your home network (router's main account, not guest network)
- myQ ^ serial number located on the garage door opener

DOWNLOAD THE myQ® APP TO SET UP AN ACCOUNT AND CONNECT

Open and close your door, get alerts and set schedules from anywhere. Connected smart garage door openers also receive software updates to ensure the opener has the latest operational features. The garage door opener must run through a complete cycle before it will activ

Download the myQ® App.
2. Set up an account and connect.

LIFT-MASTER 8155W - DOWNLOAD THE myQ® APP TO SET UP AN ACCOUNT AND CONNECT - 1

LED Definition
BlueOff - Wi-Fi is not turned on. Blinking - Garage door opener is in Wi-Fi learn mode. Solid - Mobile device connected to the garage door opener.
Blue and GreenBlinking - Attempting to connect to router.
GreenBlinking - Attempting to connect to the Internet server. Solid - Wi-Fi has been set up and garage door opener internet.

NOTES: myO App control WILL NOT work if the garage door opener is operating on battery To erase the Wi-Fi settings, see page 41.

Operation

Using the Multi-Function Door Control 882LMW

SYNCHRONIZE THE DOOR CONTROL

To synchronize the door control to the garage door opener, press the push door opener activates (it may take up to 3 presses). Test the door control each press of the push bar will activate the garage door opener.

LIFT-MASTER 8155W - SYNCHRONIZE THE DOOR CONTROL - 1

PUSH BAR

Press the push bar to open or close the door.

LIGHT BUTTON

Press the LIGHT button to turn the garage door opener lights on or off. When the lights are turned on

they will stay on until the LIGHT button is pressed again, or until the garage door opener is activated.

Once the garage door opener is activated the lights will turn off after the specified period of time (the

factory setting is 4-1/2 minutes). The LIGHT button will not control the lights when the door is in

motion.

The following features are accessible by lifting up the push bar:

LEARN A DEVICE

Any compatible remote controls, wireless keyless enfrccessoryQ can be programmed to use the gaeggarger opener by pressing the LEARN button of the door control, see below. Clicking the push bar.

The LOCK feature is designed to prevent activation of the garage door opener from while still allowing activation from the door control and keyless entry. This feature is peace of mind when the home is empty (i.e. vacation).

MAINTENANCE ALERT (MAS)

This feature assists the homeowner in ensuring the garage door opener system stays working condition. When the garage door opener needs to be serviced (approximately 4 door opener cycles) the command (yellow) and service (red) LEDs will begin to alternate and forth. The factory setting for the MAS feature is off and can be activated at t Contact your installing dealer for service.

Operation

Using the Push Button Door Control 883LMW

SYNCHRONIZE THE DOOR CONTROL

To synchronize the door control to the garage door opener, press the push button until the garage door opener activates (it may take up to 3 presses). Test the door control by pressing the push button, each press of the push button will activate the garage door opener.

LIFT-MASTER 8155W - SYNCHRONIZE THE DOOR CONTROL - 1

PUSH BUTTON

Press the push button to open or close the door.

LIGHT/LEARN BUTTON

Press the LIGHT button to turn the garage door opener lights on or off. When the lights are turned on they will stay on until the LIGHT button is pressed again, or until the garage door opener is activated. Once the garage door opener is activated the lights will turn off after the specified period of time (the factory setting is 4-1/2 minutes). The LIGHT button will not control the lights when the door is in motion.

Operation

Using the Door Control

LOCK

Your remote controls will NOT work when LOCK mode is active however your keyless entry will still allow access to your garage.

Activate:

Press and hold the LOCK button for 2 seconds. The command LED will flash as long as the lock feature is activated and your handheld remote control will not operate your door at this time. Deactivate: Press and hold the LOCK button again for 2 seconds. The command LED will stop flashing and normal operation will resume.

LIFT-MASTER 8155W - Activate: - 1

MAINTENANCE ALERT SYSTEM (MAS): Activate/Deactivate:

Press and hold the LEARN button. Then press LIGHT button. The service LED will flash the status; Active is 2 flashes and deactivated is 3 flashes.

LIFT-MASTER 8155W - MAINTENANCE ALERT SYSTEM (MAS): Activate/Deactivate: - 1

Operation

Remote Control

Your remote control has been programmed at the factory to operate with you opener.

Older LifMaster remote controls are NOT compatible, see page 45 for compatible Programming can be done through the door control or the learn button the program additional accessories refer to the instructions provided with the accessory LifMaster.com. If your vehicle is equipped with a yohomink require an external a depending on the make, model, and year of your vehicle. Visit www.homelink.com information.

TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY THE PUSH BUTTON DOOR CONTROL - MODEL 882LMW

  1. Press the LEARN button on the door control twice. The Command LED
  2. Remote Control: Press the button on the remote control that you wish to operate your garage door. Keyless Entry: Enter a 4-digit personal identification number (PIN) of your choice on the keyless en keypad. Then press the ENTER button.

The garage door opener lights will flash (or two clicks will be heard) and the blinking when the code has been programmed. Repeat the steps above for prog remote controls or keyless entry devices. If programming is unsuccessful, program the learn button.

LIFT-MASTER 8155W - TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY THE PUSH BUTTON DOOR CONTROL - MODEL 882LMW - 1

TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY PIN THE MULT FUNCTION DOOR CONTROL - MODEL 883LMW
garage door 1. Press and hold the LIGHT button and the push button until the push button
accessory hick. Remote Control:
gage 2dopperthe button on the remote control that you wish to operate your garage
or visess the button on the remote control that you wish to operate your garage
keyless Entry:
Enter 4-digit personal identification number (PIN) of your choice on the keyle
for additional keypad. Then press the ENTER button.
The garne door opener lights will flash (or two clicks will be heard) when the co programmed. Repeat the steps above for programming additional remote controls or key devices. If programming is unsuccessful, program the remote using the learn button.

LIFT-MASTER 8155W - TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY THE PUSH BUTTON DOOR CONTROL - MODEL 882LMW - 2

TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL USING THE LEARN

  1. Press and release the LEARN Button on the garage door opener.
  2. Press and hold the button on the remote control that you wish to use. Rele when the garage door opener lights blink or two clicks are heard.

LIFT-MASTER 8155W - TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY THE PUSH BUTTON DOOR CONTROL - MODEL 882LMW - 3

LIFT-MASTER 8155W - TO ADD, REPROGRAM, OR CHANGE A REMOTE CONTROL/KEYLESS ENTRY THE PUSH BUTTON DOOR CONTROL - MODEL 882LMW - 4

Operation

To Erase the Memory

ERASE ALL REMOTE CONTROLS AND KEYLESS ENTRIES

  1. Press and hold the LEARN button on garage door opener until the learn (approximately 6 seconds). All remote control and keyless entry codes are Reprogram any accessory you wish to use.

ERASE ALL DEVICES INCLUDING ENABLED ACCESSORIES

  1. Press and hold the LEARN button on garage door opener until the learn (approximately 6 seconds).
  2. Immediately press and hold the LEARN button again until the learn LED are now erased. Reprogram any accessory you wish to use.

ERASE THE Wi-Fi® NETWORK FROM THE GARAGE DOOR OPENER

  1. Press and hold the black adjustment button on the garage door opener heard (Approximately 6 seconds).

LIFT-MASTER 8155W - To Erase the Memory - 1

To Open the Door Manually

LIFT-MASTER 8155W - To Open the Door Manually - 1

until 3 beeps are FOR T-RAIL

Disconnect the trolley

  1. The door should be fully closed if possible.
  2. Pull down on the emergency release handle.

LIFT-MASTER 8155W - To Open the Door Manually - 2

Reconnect the trolley

The lockout feature prevents the trolley from reconnecting automatically.

  1. Pull the emergency release handle down and back (toward the opener). The door can then be raised and lowered manually as often as necessary.
  2. To disengage the lockout feature, pull the handle straight down trolley will reconnect on the next UP or DOWN operation, either manually or by using the door control or remote control.

Maintenance

Maintenance Schedule

EVERYMONTH

  • Manually operate door. If it is unbalanced or binding, call a trained door
    Check to be sure door opens and closes fully. Adjust if necessary, see

Test the safety reversal system. Adjust if necessary, see page 31.

EVERY YEAR

  • Oil door rollers, bearings and hinges. The garage door opener does not lubrication. Do not grease the door tracks.
  • Test the battery and consider replacing the battery to ensure the garage operate during an electrical power outage, see page 32 to test the batte

EVERY TWO TO THREE YEARS - T-RAIL ONLY

Use a rag to wipe away the existing grease from the garage door layer of white lithium grease to the top and underside of the rail slides.

NOTICE: This device complies with part 15 of the FOC rules and innovation. Science and Economic Development Canada license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This device must be installed to ensure a minimum 20 cm (8 in.) distance is maintained between users/ bystanders and device. This device has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules and Industry Canada ICDS standard. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by tuning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

The Remote Control Battery

systems technician

WARNING

Page 30 Possible SERIOUS INJURY or DEATH:
NEVER allow small children near batteries.
If battery is swallowed, immediately notify doctor.
eradditionok of fire,explosion or chemical burn:
Replace ONLY with 3V CR2032 coin batteries.
door - opeder Noill recharge, disassemble, heat above 212^ (100°C) or incinerate.

backup

To replace the battery, pry open the case

e in the suuie thennn aeth each side with theeviseofofthe settehreepoliceaton battery

positive" side up (+). Replace the batteries with only 3V CR2032 coin cell batteries. Dispose of old batteries properly.

LIFT-MASTER 8155W - The Remote Control Battery - 1

LIFT-MASTER 8155W - The Remote Control Battery - 2

Troubleshooting

Diagnostic Chart

Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrows on the garage door opener flash the diagnostic codes.

DIAGNOSTIC CODE SYMPTOM SOLUTION
UpArrowFlash(es)DownArrow Flash(es)
11The garage door opener will not close.Safety reversing sensors are not installed, connected, or wires may be cut. Inspect sensor wires for a disconnected or cut wire.
12The garage door opener will not close.There is a short or reversed wire for the safety reversing sensors. Inspect safety sensor wire at all staple and connection points, replace wire or correct as needed.
13The door control will not function.The wires for the door control are shorted or the door control is faulty. Inspect door control wires at all staple and connection points, replace wire or correct as needed.
14The garage door opener will not close.Safety reversing sensors are misaligned or were momentarily obstructed. Realign both sensors until both LEDs are glowing steady. Make sure nothing is hanging or mounted would interrupt the sensor's path while closing.
15Door moves 6-8' (15-20 cm) stops or reverses.Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, correct as needed. Check wiring connections at travel module and Replace travel module if necessary.
No movement, only a single click.Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, correct as needed. Replace logic board if necessary.
Opener hums for 1-2 seconds no movement.Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, correct as needed. Replace motor if necessary.
16Door coasts after it has come to a complete stop.Program travel to coasting position or have door balanced by a trained door systems technician.
21-5No movement, or sound.Replace logic board.
32Unable to set the travel or retain position.Check travel module for proper assembly, replace if necessary.
33The battery status LED is constantly flashing green.*Battery backup charging circuit error, replace the logic board. *(if applicable)

Troubleshooting

DIAGNOSTIC CODE SYMPTOM SOLUTION
UpArrowFlash(es)Down Arrow Flash(es)
41-4 Door is moving, stops or reverses. Opener beeps and lights flash.Manually open and close the door. Check for binding or obstructions, such as a brook door lock, correct as needed. If the door is binding or sticking, contact a trained do technician. If door is not binding or sticking attempt to reprogram travel (refer to pad
45 Opener runs approximately 6-8" (15-20 cm), stops and reverses.Communication error to travel module. Check travel module connections, replace travel me necessary.
4Safety reversing sensors are misaligned or were momentarily obstructed. Realign both sensors to ensure both LEDs are steady and not flickering. Make sure nothing is hanging or mo door that would interrupt the sensor's path while closing.

The garage door opener will NOT eRFARWi-Finode:
After the initial installation of the garage door opener, the garage door complete a full cycle (open and closed) before the Wi-Fi LEARN mode
- If there has been a recent power outage, the garage door opener must before the Wi-Fi LEARN mode can be activated.

See page 36 to activate Wi-Fi LEARN mode.

Cannot connect garage door opener to home Wi-Fi network:

  • Ensure the serial number was entered correctly and try characters myQ are between A-F and 0-9 only.

  • Weak Wi-Fi signal in the garage. Ensure the Wi-Fi signal is reaching the garage, see page 4 or visit LiftMaster.com/Customer-Support for more information.

My door will not close:

The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.

  • Check for binding or obstructions anywhere along the track to garage floor.

  • The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.

  • Verify the safety reversing sensors are properly installed, aligned and free of any obstructions.

My neighbor's remote control opens my garage door:

Denee thost memory from your garage door opener and reprogram the remote control(s) My bvehicated homefis not programming to my garage door opener:

Complteg onfull the cycle make, model, and year of your vehicle an external adapter may b www.homelink.com for additional information.

Accessories

878MAX MAX Wireless Keyless Entry:

LIFT-MASTER 8155W - Accessories - 1

For use outside of the home to enable to the garage using a 4-digit PIN. Wg ALL LiftMaster openers from 1993-present

893MAX 3-Button MAX Remote Control:

LIFT-MASTER 8155W - Accessories - 2

Compatible with LiftMaster manufactured since 1993.

garage door includes visor

880LMW Smart Control Panel:

opener displays temperature, time and system diagnostics; includes a push bar to open and close the door and a lock feature for extra security. Security ^+ 2.0 and Wi-Fi compatible.

819LMB myQ 念 Home Bridge:

LIFT-MASTER 8155W - Accessories - 3

Add Apple HomeKit™ compatibility to your Q® enabled garage door opener. Use to open, close and check the status of your door.

891LM Single Button Remote Control:

Compatible with LiftMaster manufactured since 1993.

garage door includes visor

882LMW Multi-Function Control Panel:

Security+ 2.0 and Wi-Fi compatible.

485LM 12V Battery for Backup System:

LIFT-MASTER 8155W - Accessories - 4

Provides backup power to the garage opener.

374UT Mini Universal Remote Control:

LIFT-MASTER 8155W - Accessories - 5

The Mini Universal Remote Control can programmed to activate up to two prsuch as a garage door openlightmyQ controls, gate operator, or commercial operator.

380UT Universal Remote Control:

LIFT-MASTER 8155W - Accessories - 6

The Universal Remote Control can be programmed to activate up to two products, as a garage door opener, gate operator, or commercial door operator.

881LMW Motion Detecting Control Panel with Timer-t886LMW Motion Detecting Control Panel:

LIFT-MASTER 8155W - Accessories - 7

Close Control: Multi-function door control with motion sensor that automatically turns opener lights on when it detects a person entering the garage. Security+ 2.0 and Wi-Fi compatible.

Warranty

WARRANTY PERIOD
Models Parts Motor Accessories Belt Battery Backup*
8160W8165W8164W1 year 4 years 1year N/AN/A
8160WB 1 year 4 years 1 year N/A 1year
8155W 1 year 4 years 1 year 10 yearsN/A
8365W-267 1 year Lifetime 1 year N/AN/A

The proper operation of this product is dependent on your compliance with the instructions regarding installation, operation, and maintenance and testing. Failure to comply strictly with those instructions will void this limited warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-9131, toll free, before dismantling this product. You will be advised of disassembly and shipping instructions when you call. Then send the product or component, pre-paid and insured, as directed to our service center for warranty repair. Please include a brief description of the problem and a dated proof-of-purchase receipt with any product returned for warranty repair. Products returned to Seller for warranty repair, which upon receipt by Seller are confirmed to be defective and covered by this limited warranty, will be repaired or replaced (at Seller's sole option) at no cost to you and returned pre-paid. Defective parts will be repaired or replaced with new or factory-rebuilt parts at Seller's sole option. [You are responsible for any costs incurred in removing and/or reinstalling the product or any component].

ALL IMPLIED WARRANTYES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTYES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE APPLICABLE LIMITED WARRANTY PERIOD SET FORTH ABOVE FOR THE RELATED COMPONENT(S), AND NO IMPLIED WARRANTYES WILL EXIST OR APPLY AFTER SUCH PERIOD. Some States and Provinces do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE, DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIDRED OR REPLACED UNIT, REPLACEMENT OF CONSUMABLE ITEMS (E.G., BATTERIES IN REMOTE CONTROL TRANSMITTERS AND LIGHT BULBS), OR UNITS INSTALLED FOR NON-RESIDENTIAL USE. THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT OR HINGES. THIS LIMITED WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE. UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ASING IN CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER'S LIABILITY FOR BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED HEREBY. NO PERSON IS AUTHORIZATIOND TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS PRODUCT.

Some states and provinces do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or exclusion may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights, which vary from state to state and province to province.

*If applicable

Automatic Garage Door Opener Safety & Maintenance Guide

Garage Door Opener Safety - An Automatic Decision

A garage door is the largest moving object in the home. An improperly adjusted garage door and opener can exert deadly force when the door closes - which could lead to entrapment of children or adults and subsequent injury or death.

Proper installation, operation, maintenance, and testing of the garage door and automatic opener are necessary to provide a safe, trouble-free system. Careless operation or allowing children to play with or use garage door opener controls are also dangerous situations that can lead to tragic results. A few simple precautions can protect your family and friends from potential harm. Please review the safety and maintenance tips in this guide carefully and keep it for reference. Check the operation of your garage door and opener to ensure they function in a safe and trouble-free manner. Be sure to read all Important Safety Information found in your garage door opener's manual as it provides more details and safety considerations than can be supplied with this guide.

Garage Door Openers are Not Toys

Discuss garage door and opener safety with your children. Explain the danger of being trapped under the door.

LIFT-MASTER 8155W - Garage Door Openers are Not Toys - 1

Stay away from a moving door. The wall-mounted push button should be out

LIFT-MASTER 8155W - Garage Door Openers are Not Toys - 2

out of reach of

children, at least 5 feet from the nearest standing surface and away from all moving parts. Mount and use the where you can clearly see the closing garage door.

LIFT-MASTER 8155W - Garage Door Openers are Not Toys - 3

Keep transmitters and remote controls out of children. Do not let children play with or use other remote control devices.

LIFT-MASTER 8155W - Garage Door Openers are Not Toys - 4

Keep the door in sight until it completely closes when using the wall-mounted push button or transmitter.

Routine Maintenance Can Prevent Tragedies

Make monthly inspection and testing of your garage door and opener system a part of your regular routine. Review your owner's manual for both the door and door opener. If you don't have the owner's manuals, contact the manufacturer(s) and request a copy for your specific model(s). Look for the opener model number on the back of the power unit.

LIFT-MASTER 8155W - Routine Maintenance Can Prevent Tragedies - 1

WARNING - SPRINGS ARE UNDER HIGH TENSION. ONLY QUALIFIED INDIVIDUALS SHOULD ADJUST THEM.

LIFT-MASTER 8155W - Routine Maintenance Can Prevent Tragedies - 2

Visually check the door and installation:

  • Starting with the door in the closed position, use the manual disconnect on the opener to disconnect the door.
  • Look for signs of wear or damage on hinges, rollers, springs, and door panels.
    These parts may require periodic lubrication. Check the owner's manual for suggested maintenance.
  • If any signs of damage are evident, contact a trained door systems technician for assistance.
  • Verify the photoeye height is no higher than 6' from the garage floor.

LIFT-MASTER 8155W - Routine Maintenance Can Prevent Tragedies - 3

Test the door for proper operation:

  • Open and close the door manually using handles or suitable gripping points.
    The door should move freely and without difficulty.
    The door should balance and stay partially open 3-4 feet above the floor.
    If you detect any signs of improper operation, contact a trained door systems technician for assistance.

LIFT-MASTER 8155W - Routine Maintenance Can Prevent Tragedies - 4

Test the opener safety features:

  • Reconnect the opener to the door using the manual disconnect and open the door.
  • Place a 2x4 board flat in the path of the door (1) and try to close it (2). The
    contact with the 2x4 and then reverse direction.
  • Block the photoelectric sensor by waving an object in front of the sensor and attempt to
    door should not close unless the wall-mounted push button is manually held during operation.
  • If the opener does not perform as described, contact a trained door systems technician for assistance.

LIFT-MASTER 8155W - Routine Maintenance Can Prevent Tragedies - 5

DASMA

Manufacturers Association

International 1290

Repair Parts

Models 8160W, 8160WB, 8164W, 8165W, and 8365W-267

For Square Rail see instructions included with the LMSSRKIT.

RAIL ASSEMBLY PARTS

DescriptionPart Number
1Chain - for 7 foot door041D3484
Chain - for 8 foot door041D3483
Chain - for 10 foot door041D3485
2Chain Pulley Bracket041A4813
3Master link004A1008
4One-Piece Rail 7 feet (2.1 m)1707LM
One-Piece Rail 8 feet (2.4 m)1708LM
One-Piece Rail 10 feet (3 m)1710LM
5Trolley Assembly Includes: Threaded Shaft (1), Nuts (2), Washer (1), Clevis Pin (1), Ring (1), Master Link (1), Chain Extension041A3489
6Trolley Threaded Shaft041A6689
Not Shown
Rail GreaseK083A0011-1

ACCESSIONS

Description Part Number
1Push Button Door Control Model 8164W883LMW
2Multi-function Control Panel Models 8160W, 8160WB, 8165W, and 882LMW 8365W-267
31 Button Remote Control Model 8164W891LM
43 Button Remote Control Models 8160W, 8160WB, 8165W, and 893LM 8365W-267

LIFT-MASTER 8155W - Repair Parts - 1

LIFT-MASTER 8155W - Repair Parts - 2

INSTALLATION PARTS

Description Part Number
1 Curved door arm041B0035B
2 Door bracket with clevis pin and fastener041A2828
3 Emergency release rope and handle041A2828
4 Header bracket with clevis pin and fastener041A4353
5 Remote control visor clipK029B0137
6 Safety sensor bracket041-0155-000
7 Safety sensor kit with receiving and sending sensors with 3 feet (.9 m) 2-conductor wire041-0136
8 Straight door arm4178B0034B
9 White and red/white wire041B4494-1
10 3V CR2032 lithium batteryK010A0020
11 Extension bracket (optional)041A5281-1
Not Shown
Installation hardware bag041A2770-6
User's Guide114-5711-000

LIFT-MASTER 8155W - Repair Parts - 3

Repair Parts

Models 8160W and 8160WB

GARAGE DOOR OPENER PARTS

LIFT-MASTER 8155W - Repair Parts - 1

Description Part Number
1Sprocket and sprocket cover041B5348-2
2End panel with light socket
Model 8160W041A7756-1
Model 8160WB041A7618
3Light Lens041A7562
4Light socket041C0279
5Cover041-0133-000
6Motor with travel module041D8006-1
7Travel Module041D8071-4
8Logic board end panel041D0233-3
9Logic board050DCTBMC
10Battery Backup (Model 8160WB only)485LM
Not Shown
Wire Harness041D9069
Transformer
Model 8160W041A7635-1
Model 8160WB041D0277-1
Line cord041B4245-1
Terminal block041A3150

Repair Parts

Models 8164W and 8165W

GARAGE DOOR OPENER PARTS

LIFT-MASTER 8155W - Repair Parts - 1

Description Part Number
1Sprocket cover031D0380M
2Gear and sprocket041C4220A
3Drive and Worm Gear041A2817
4Front end panel with all labels041A8393
5Light socket041C0279
6Light lensK108D0079M
7Capacitor030B0532-1
8Capacitor bracketK012A0373
9Universal motor041D7440
10Travel module041D7742-7
11Cover041D9018
12Logic board050ACTBMC
13Logic board end panel041D0239-1
Not Shown
Line cord041B4245-1
Terminal block041A3150
Wire Harness041A7946

Repair Parts

Model 8365W-267

For Square Rail see instructions included with the rail kit model LMSSRKIT.

GARAGE DOOR OPENER PARTS

LIFT-MASTER 8155W - Model 8365W-267 - 1

Description Part Number
1Sprocket cover with screws031D0380M
2Gear and sprocket041C4220A
3Drive and Worm Gear041A2817
4Front end panel with all labels041A8393
5Light socket041C0279
6Light lensK108D0079M
7Capacitor030B0532-1
8Capacitor bracketK012A0373
9Universal motor041D7440
10Travel module041D7742-7
11Cover041D8993
12Logic board050ACTBMC
13Logic board end panel041D0210-1
Not Shown
Line cord041B4245-1
Wire Harness041D8227
Terminal block041A3150

Repair Parts

Model 8155W

RAIL ASSEMBLY PARTS

DescriptionPart Number
1Belt - for 7 foot door041A5434-11A
Belt - for 8 foot door041A5434-13A
Belt - for 10 foot door041A5434-14A
2Belt Pulley Bracket041B5424
3Master link004A1008
4One-Piece Rail 7 feet (2.1 m)2777BD
One-Piece Rail 8 feet (2.4 m)2778BD
One-Piece Rail 10 feet (3 m)2770BD
5Trolley Assembly Includes: Master LiB41B3869-3A (2), Clevis Pin (1), Ring (1), Belt Clip (1), Threaded Shaft (1), and Tensioner Assembly (1)
6Tensioner Assembly041B4103
7Trolley Threaded Shaft041A6689

ACCESSIONS

DescriptionPart Number
1 Multi-function control panel882LMW
2 3-button remote control893LM

LIFT-MASTER 8155W - Model 8155W - 1

LIFT-MASTER 8155W - Model 8155W - 2

INSTALLATION PARTS

Description Part Number
1 Curved door arm041B0035B
2 Door bracket with clevis pin and 041A5647-1
3 Emergency release rope and handle 041A2828
4 Header bracket with clevis pin and 041A4353-1 fastener
5 Remote control visor clipK029B0137
6 Safety sensor bracket041-0155-000
7 Safety sensor kit with receiving and 041-0136 sending sensors with 3 feet (.9 m) 2-conductor wire
8 Straight door arm4178B0034B
9 White and red/white wire041B4494-1
10 3V CR2032 lithium batteryK010A0020
11 Extension bracket (optional)041A5281-1
Not Shown
Installation hardware bag041A2770-6
User's Guide114-5711-000

LIFT-MASTER 8155W - Model 8155W - 3

Repair Parts

Model 8155W

GARAGE DOOR OPENER PARTS

LIFT-MASTER 8155W - Repair Parts - 1

Description Part Number
1Sprocket cover041A4371
2Gear and sprocket041A4885-4
3Drive and Worm Gear041A2817
4Front end panel with all labels041A8393
5Light socket041C0279
6Light lensK108D0079M
7Capacitor030B0532-1
8Capacitor bracketK012A0373
9Universal motor041D7440
10Travel module041D7742-7
11Cover041D9018
12Logic board050ACTBMC
13Logic Board End Panel041D0239-1
14Line cord041B4245-1
Not Shown
Wire Harness041A7946
Terminal block041A3150

CONTACT INFORMATION:

Use your part number, part name or model number to find you need.

For parts, go to:

LiftMaster.com/parts

For help and troubleshooting, go to:

support.chamberlaingroup.com

Ouvre-portes

de garage

Wi-Fi

B. Poulie et support

C. Support de porte

D. Bras de porte incurve

ACCESSIONS SECURITY+ 20

882LMW

ACCESSIONS SECURITY+ 20

882LMW

Commande de porte

multifonction

893LM

Telecommande

LIFT-MASTER 8155W - 893LM - 1

LIFT-MASTER 8155W - 893LM - 2

MATÉRIEL D'INSTALLATION

Boujon 6ix pans 5/16 po - 18 x 7/8 po (4) Rondelle d'arrêt 5/16 po - (4)

Tirefond 5/16 po - 9 x 1-5/8 po (2) Vis autotaraudeuse 1/4 po - 14 x 5/8 po (2

axe a menaulement 5/16 po x 2-3/4 po (1) Anneau de fixation (3)

aepaulement 5/16 po x 1-1/4 po (1) Boulon de carrosserie 1/4 po - 20 x

programCommande a distance:

819LMB myQ Home Bridge

LIFT-MASTER 8155W - MATÉRIEL D'INSTALLATION - 1

LiftMaster.com/parts

Numpred series del myO

LIFT-MASTER 8155W - MATÉRIEL D'INSTALLATION - 2

WiFiHelp.LiftMaster.com.

819LMB myQ Home Bridge:

LIFT-MASTER 8155W - MATÉRIEL D'INSTALLATION - 3

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Product information

Brand : LIFT-MASTER

Model : 8155W

Category : Garage door